The royal family of Saudi Arabia is one of the richest in the world but it's also huge. There are something like 30,000 AlSaud princes. Obviously the vast majority of them are not billionaires, though a few are. The population of the UAE is tiny.

I'm confused by kevlarkev's comment. Is this implication that the shiekhs of the UAE are not citizens of their own country?

I totally expected the UAE too. At least that's how I've interpreted the marketing of Dubai these last 15 years. That it was basically Switzerland on the Persian Gulf. Maybe it's full of billionaires with citizenship from other nations.

oh, yeah okay I get it. That's true, Dubai is trying to brand itself as the top vacation spot for the obscenely wealthy. But I don't think there are too many foreign wealthy people that live there on a full-time basis.

What makes you think Switzerland is the poorest country in Europe? It's one of the wealthiest in the world, with the 19th largest economy (2011) y - not bad for a country with about 8 million people...

I don't know what you're talking about. I've got a million krónur in my bank accounts. Granted, that's barely enough to buy a used car, but still, I'm an Icelandic millionnaire. And if I could find a bureau de change, I could be a Vietnamese millionnaire just on what's in my wallet. Granted, 1 000 000 đồng is about £30, but still.